中国地级市土地城镇化与人口城镇化协调发展的空间格局分析

Spatial Difference Analysis of Coordinated Development between Land Urbanization and Population Urbanization in Prefecture Level Cities of China

在分析土地城镇化与人口城镇化协调发展机理的基础上,分别构建人口城镇化子系统与土地城镇化子系统的指标体系,综合运用熵权法和系统藕合协调度模型,以289个地级(以上)市为研究对象,测度地级(以上)市土地城镇化与人口城镇化协调发展度,并采用泰尔指数、探索性空间数据分析方法探讨其空间分异特征.主要研究结论:(1)土地城镇化与人口城镇化协调发展度的平均值为0.709,超过62%的地级市处于勉强协调级、濒临失调级和失调级,这表明我国土地城镇化与人口城镇化的协调发展度总体不高,提升空间很大.(2)城镇化协调发展度呈现由东部沿海地区向西北内陆地区递减的阶梯状分布态势,总体来说,东部地区(0.761)>中部地区(0.717)>西部地区(0.681).(3)土地城镇化与人口城镇化协调发展度呈现空间正相关,其空间集聚状态可以分为4种:高值集聚区(主要分布在东部沿海地区)、高值异质区域(零星分布在西南地区)、低值异质区域(主要集中分布在华北和中部地区)及低值集聚区(主要集中分布在陕甘地区、云川地区的部分地市).这个结论能够为区域之间城镇化协同发展政策的制定提供理论依据.

On the basis of the analysis of the coordinated development mechanism of land urbanization and population urbanization,the index system of the population urbanization subsystem and the land urbanization subsystem is constructed respectively,and the direct entropy method and the coupling coordination degree model of the system are used to measure the land level(above)city soil with 289 prefectural level(above)cities as the research object.The coordinated development degree of land urbanization and population urbanization is discussed and its spatial differentiation characteristics are discussed.The main conclusions are as follows:(1)The average value of the coordinated development of land population urbanization and population urbanization is 0.709,and more than 62%of the city level cities are at the level of reluctance and imbalance,which indicates that the coordinated development degree of land urbanization and population urbanization in China is not high,and the promotion space is very large.(2)the coordinated development degree of urbanization reduces from the eastern coastal areas to the western inland areas with the ladder like distribution trend,in general,the eastern region(0.761)>the central region(0.717)>the western region(0.681).(3)there is a positive spatial correlation in the coordinated development degree between land urbanization and population urbanization,and the spatial agglomeration state can be divided into four types:high value agglomeration(mainly distributed in the eastern coastal area),high value heterogeneous regions(scattered in the southwest region)and low value heterogeneous regions(mainly concentrated in north and central areas).Low value agglomeration area(mainly concentrated in Shanxi and Gansu Province,part of the city in Yunnan Province).This conclusion can provide a theoretical basis for the formulation of the coordinated development policy of urbanization between regions.